Introspect State

Since templates are executable at runtime without precompilation it's a great tool for running
live queries to inspect the state of a running .NET App within a controlled window sandbox.
Here's an example of querying a Server's state:

Which calls the generic ajaxPreview jQuery plugin in
default.js
to make an ajax request on every text box change.

Debug Template

As this feature is an extremely useful way to inspect the state of a remote .NET or .NET Core App it's an embedded feature in
ServiceStack which is automatically registered in DebugMode
which can optionally be made available to everyone with: